INFLUENCETHE USE OF PERTALITE AND PERTAMAX FUEL ON ENGINE PERFORMANCE ON FOUR-STROKE MOTORBIKE. Vomek [Internet]. 2024 Nov. 30 [cited 2026 Apr. 29];6(4):521-7. Available from: http://vomek.ppj.unp.ac.id/index.php/vomek/article/view/779